Shuttle for weft-replenishing looms.



Patented Oct. 7, 1913.

I 371160 7? imam Kai/9050M.

V E. s. STIMPSON. SHUTTLE FOB. WEFT R-EPLENISHING LOOMS.

APPLICATION FILED APR.5, 1913.

ii rnn STATES PATENT cmea ZEBWABD. S. STIMPSOH, OF- HQPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER-COM- PANY, O F HOPEDALE, IVLASSA(IEIUSETTS, A CORPORATION OF MAINE.

SHUTTLE ron wnrr-nnrnnmsnme ooms.

Specificationof Letters Patent.

PatentedOct. '7, 1913.

Application filed April 5, 1913. Serial No. 7 59,039.

all whom it may concern Be it known that I, EDWARD S. STIMPSON,

of Hopedal'e, in the countyof Worcester and State of Massachusetts, have invented vpertain new and useful Improvements in huttles for W'ett-Replenishing Looms, of which the following is aspecification.

The present invention relates to a spreader employed to maintain in proper relative positioii the holding jaws of the shuttle spring which is employed in automatically threadshuttles for the purpose of yieldingly grasping the head oft-he bobbin or other weft carrier. The improvement is illustrated in the accompanying drawings in which 'Fi m1 is a plan View of the weft carsuch a; shuttle spring when the jaws are of,

reduced Width at their holding ends as corn .pared with the width of their connected shanks. Such a shuttlea'spring having jaws of reduced width isillustrated in the acoompanying drawings wherein A is the shuttle, B is the shuttle spring and C is a bobbin held between the jaws a, of the shuttle spring. As shown in Fig. 2 of the drawings the free ends a of the jaws are of less width thanthe shanks 7). Both jaws are made of a single piece of metal bent into shape, as illustrated in' Fig. 1 and the uniting bend between the two jaws is shown in section at c in Fig. 2; The shuttle springB is retained within the shuttle by means of a transverse'bolt D passing through aperturestoo closely together when screwingup the bolt D into place, this otherwise .bei'ngapt in the shanks b of the two jaws.

Cooperating with the shuttle spring B is an inclined sheet metal shuttle spring guard E. This guard E has an integral horizontal top plate d having an aperture through whichpas'ses a screwuF- which secures the guard to the body of the shuttle. Also, the

resting upon the bottom wall of the shuttle as shown in Fig. 2. The shanks b .fit between the two plates d, e, of

the guard E. The bottom plate e'of the guard has transverse wings f (see Fig. l)

which extend beneath the bowed portions of the jaws aclose to the base of the bobbin C. Consequently the plate 6 supports the shuttle spring underneath against the strain resulting from the insertionof-a fresh bobbin and theexpulsion of'a spent one. The

reaction is withstood by the top plate (Z of the guardE. This guard also has the usual ncline at front to directthe incoming Weftcarrier to the spring jaws.

As thus far described, there is nothing which is not disclosed'in prior patents or applications. The specifically illustrated shuttle spring is set forth in applicatiomfor v Letters Patent of the United States filed by' me SeptemberlQ, 1912, Serial No. 719,956.

The specifically illustrated guard E is shown;

in that application and also in United States Letters Patent to Janelle No. 7 82,505, February 14., 1905, and in United States Letters Patent of McCaslin No. 1,017,789.,Febr1iary 20,1912. j

The present improvement resides in the spreader G and its relation to the shuttle spring B, the bolt D, and the guard E. The

spreader G is made of a single piece of sheet metal bent into shape. It has a top legg and a bottom leg 2' connected together'byan inclined bridge h. The top and bottom legs 9 and 2' are parallel to each other, and are of uniform width with the inclined bridge 72. and just sutficiently wide to fit tightly between the shanks b of the two jaws. Ac: cordingly the jaws are maintained the proper distance apart and can not be bent to occur by reason of the yielding of the wooden walls of the shuttle. The spreader G has an upwardly rising tongue y at the guard E has an integral bottom' plate 6 shuttle spring' rear end oil the bottom leg 2' which extends closely and snugly between the retaining bolt "ll-and the connecting bend a of the two jaws. Accordingly, the spreader is maintained accurately in place. The free end of the top leg 9 of the spreader has two lateral oppositelyprojecting arms,.7r:, each of which extends outwardly beyond the top plate (Z of the guard E and above the top of the corresponding jaw, this being rendered possible because of the downward inclination of this portion of the jaw between the shank and the narrow'holding end of the jaw. Each arm extends outwardly sufliciently far to extend within the corresponding recess m of the, shuttle wall, this recess being provided in the usual manner to accommodate the outward spread of the jaws when the bobbin is inserted. Each arm I: has a revcrsely turned wingl on its out-er side fitting closely against the face of the shuttle wall recess m. By reason of this construction of the spreader, it not only prevents the jaws of, the shuttle spring from being forced toward each other, thus avoid. ing the possibility of the jaws being so close together as not to receive the butt of the "weft carricr; but, in addition, the spreader effectually locks the shuttle. spring in plac and prevents any movement thereof either up or down or sidewise. The arm of the s 'ireader fits snugly between the upper edges of the j aws andthe top plate (.1 of the guard thereby preventing any upward movement of the jaws which might occur through the looseness of: fit between the top and bottom plates of the guard.

l claiin l. A. loom shuttle having, in combination, a. one piece weft carrier holding shuttlestaring bent from 'a single piece of metal ahd having two jaws, the shanks ol which are wider than the weft-carrier holding ends; a guard having integral top and bottom plates which embrace said shanks between them, said top plate being fastened to the shuttle; a transverse bolt in the shuttle passing through the shanks of both jaws;

a recess in each side wall of the shuttle opposite the holding endcf each jaw; and a onepiece spreader havmgpara-llel top and bottom legs and an inclined-bridge connecting ..'tl1em, the bottom leg having an up- .wardly projecting tongue, and the top leg having laterally projecting arms each with a reversely turned wing, said legs a'ndbridge fitting between the jaw shanks, said bridge,

, the jaws.

aovaeea a one piece weft-carrier holding shuttle spring bent from a single piece of metalr;

and having two jaws; a guard having top and bottom plates which embrace said shanks between them, said top plate being fastened to the shuttle; a transverse bolt-in the shuttle passing through the shanks of both jaws; and-a spreader having top and bottom legs and a bridge connecting them, the bottom'leghaving an upwardly. .projecting tongue, and the top leg having laterally projecting arms, said legs and bridge fitting between the jaw shanks, said bridge being forward of said bolt, said tongue fitting between. said bolt and the connecting bend of the two jaws, and each of said arms extending between the guard and one of 3. A loom shuttle having, in combination,

a one piece weft-carrier holding shuttlespring bent from a single piece of metal and having two jaws; a guard having top and bottom plates which embrace said shanks between them; a transverse bolt in the shuttle passing through the shanks of both jaws; and a spreader having top and bottom legs and a bridge connecting them, the bottom leg having an upwardly projecting tongue, and the topleg having laterally projecting arms, said legsiand bridge fitting between the jaw shanks, said bridge being forward of said bolt, Saidtonguefit;

ling between said bolt and the connecting bend of the two jaws, and each of said arms extending between the guard and a reduced portion of one of the aws. i

i. A loom shuttle having, combination,

'a one piece weft-carrier holding shuttlespring bent from a. single piece of metal and having two aws, the shanks of which .are wider than the weftcarrier holding ends; a guard having top and bottom plates which embrace said shanks between them; and a spreader having laterally projecting arms, said spreader fitting between. the jaw shanks, and each of said arms extending between the guard and a reduced portion of one of the jaws.

5. A loom shuttle having, in combination, a one piece weft-carrier holding shuttlesp'ring benufrom a single piece of metal and having two jaws; a transverse bolt in the shuttle passing through the shanks of both'jaws; and a spreader having top and bottom legs and an inclined bridge connecting them, the bot-tom leg having an upwardly projecting tongue, said legs and bridge fitting between the jaw shanks, said bridge being forward of said bolt, and said tongue fitting between said bolt and the connecting bend of the two jaws.

6. A loom shuttle having, in combination, a one piece weft-carrier holding shuttle spring bent from a single piece of metal and having two jaws; a transverse bolt in we I the shuttle passing through the shanks of signed my name in the presence of two subboth jaws; and a spreader fitting bet-ween scribing Witnesses. the jaw shanks and having an upwardly 7 extending tongue fitting snugly between said ARD STIMPSON' 5 bolt and the connecting bend of the two Witnesses:

jaws. JOSEPH H. SHEPHERD.

In Witness whereof, I have hereunto DANA Oseoon. 

